I want to verify my external crypto wallet address for making a deposit.
You will send a specific, additional micro-amount with your deposit to verify ownership of the address.

You will send a specific, additional micro-amount with your deposit to verify ownership of the address.
You will first send a micro-transaction as a deposit from the external address to Bitcoin Suisse to verify ownership of the address.
You will send a micro-transaction as a deposit from this external address to verify ownership of this address and continue using it.
You will first make a small, one-time withdrawal from your Bitcoin Suisse account, then send a micro-transaction as a deposit to Bitcoin Suisse to verify ownership of this address.